It would be C, because the ratio 2/5 (the ratio of giraffes to monkeys) is equal to 4/10 (answer choice C)
Alright, so the ratio given here is 32:56.
Let's simplify that.
56/8 is 7
32/8 is 4
So, the balloons are in a 4:7 ratio.
If you have 7 blue balloons (the 7 in the ratio), then you must have 4 red balloons (the 4 in the ratio).